Multiple notching die



Oct. 6, 1953 A. MARTINCIC MULTIPLE NOTCHING DIE 3 Sheets-Sheet 1 Filed 001;. 19 1949 Oct. 6, 1953 A. MARTlNClC MULTIPLE NOTCHING DIE Filed Odt. 19, 1949 3 Sheets-Sheet 2 f 7221672757. 0327572 fyariz'ncz'c.

Oct. 6, 1953 A. MARTINCIC MULTIPLE NOTCHING DIE 5 Sheets-Sheet 3 Filed Oct. 19, 1949 HWI WW Patented Oct. 6, 1953 UNITED STATES PATENT OFFICE MULTIPLE NOTCHING DIE. Anton Martincic, Chicago, Ill.

Application October 19, 1949, Serial No. 122,258

16 Claims. 1

.The invention relates generally to punching or shearing dies and, more particularly, to a multiple die for performing any one of a plurality of operations.

. The invention has among its objects the production of a novel die assembly which is constructed to perform a plurality of different shear- 'ing operations, which is simple in construction,

very efficient and durable in operation, and relatively inexpensive to manufacture, and which '.is of particular use in small shops whereby a single machine may be employed for a number of dififerent operations.

. Another object of the invention is the production of such a die provided with novel means for guiding and gauging the material upon which 7 the operations are to be performed.

.A further object of the invention is the production of such a die structure in which certain of the die members may be interchanged to provide additional versatility in the single die structure.

Many other objects and advantages of the construction herein shown and described will be obvious to those skilled in the art from the dis- I closure herein given.

To this end my invention consists in the novel .construction, arrangement, and combination of parts herein shown and described, and more particularly pointed out in the claims.

In the drawings, wherein like reference characters indicate like or corresponding parts;

, Fig. 1 is a top plan view of the female die .member;

Fig. 2 is a sectional viewtaken approximately on the line 22 of Fig. 1 of the female die mem- -which may be performed by the die shown;

Fig; '7 is a plan view of a corner portion of a piece of sheet material illustrating a second operation which may be performed by the die shown;

Fig. 8 is a plan view of a corner portion of a piece of sheet material illustrating a third operation which may be performed by the die shown; and

Fig. 9 is a plan view of an end of strip material illustrating a fourth operation which may be performed by the die shown.

Referring to the drawings, and particularly to Figs. 1 and 2, I indicates generally the female die member comprising a base member 2 of generally rectangular shape having the corner portions notched, as indicated at 3, to provide mounting flanges 4 at each corner of the device adapted to be engaged by suitable clamping elements whereby the member 2 may be rigidly mounted on the bed of the machine on which it is to be employed. The upper face 5 of the memher 2 is provided with a more or less rectanmaintained in position by bolts gular-shaped recess 6 in which are positioned a plurality of die blocks Ia, 1b, 1c, and 7d, the blocks each being positioned adjacent a respective corner of the recess 6 and spaced from one another, as clearly illustrated in Figs. 1 and 3, and rigidly secured to the base 2 by suitable bolts 8 passing through each block and threaded into the base member 2. Positioned between each adjacent pair of blocks and likewise seated in the recess 6 is a spacer block 9 onwhich are mounted respective guide supporting members I l, the latter and the blocks 9 each being rigidly I2 passing through the base member 2, respective blocks 9, and threaded into each bar H, as clearly illustrated in Fig. 2. It will be noted that as the upper surfaces of the blocks 9 are inset below the upper surfaces of the adjacent blocks, each bar H is positioned in a channel between adjacent blocks 1, whereby each bar is rigidly held in position with respect to the base member and the die blocks.

As clearly illustrated in Figs. 1 and 3, the die block la is provided with a diagonally extending shearing edge l3, the block lb with L-shaped cutting edges l4, the block 'lc with a curved cutting edge l5, and the block Id with the curved cutting edge [1. The blocks la, and lb are also provided with additional curved cutting edges I8 and [9, respectively, for the purposes hereinafter set forth. The base member 2 is provided with a centrally located opening 2| therethrough to permit passage of sheared material through the die.

(Jo-operable with the die member 2 is a male punch member, indicated generally by the numeral 22, adapted to be mounted on the movable drive member or ram 23 of the punch press by means of the large bolt 24 and pins 25. As illustrated'in Fig. 4, the member 22 is generally X- shaped, having a plurality of radially extending 3 portions 26, with cutting edges 21a, 21b, 21c, and 27d being positioned between adjacent projections 26. Each of the latter is provided with a downwardly extending flange 28 adapted to be positioned adjacent the blocks 9, and it will be noted that as the blocks 9 and adjacent ends of the bars H are outwardly ofiset with respect to the adjoining side edges of adjacent die blocks 1, channels between each pair of die blocks are formed",.the channels being of a size to receive the adjacent ends of each projection 26 and provide a guide therefor whereby the female die member 2 and male member 22 are maintained in accurate alignment at all times. It might be, men.-

tioned that while Fig. 2 illustrates the male and female members as being completely separated,

such separation is merely for the purpose of clearly illustrating the parts, andnormally the upward movement of the male memberwould be limited to such an extent that the flanges 28 do-notleave their respective guide channels-during normal operation ofv the device.

Mounted on the member 22. is a pair of. blocks 29a. and: 28b, theblock 2911.. being rigidly secured tathe. member 22. by a suitable screw. 3],, and=the block 29b. being secured to. themember 22 by a suitable screw 32-, with. the, head. of each screw being inset into its respective block, as clearly illustrated in. Fig. 4; The. block 29a is provided with. a shearing, edgev 33: complementary to the shearing edge 13 of. the. block la, and theblock 29b is provided with: a pair of shearing edges 3Acomplementary. to the shearing edges l of the. block 1b.. In likemanner, the shearing edge 27a of the member. 2?. is complementary to the edge: l8v of the block la, and the shearing edge 21b.- is. complementary to the. shearing edge l9 of the-block 1b.

It will beapparent that in the operation of the device, the edges. [3 and, 33' will diagonally eut. apiece-of material placed upon the block la and extending. over the edge l3. Likewise, material placed. on the block lb. will be. notched along the. cutting edge I4, and in like manner.

material. placed upon the blocks Tc or 7d will becut onpre-determined radii,,the radius of, the edge- W, as illustrated,. being less than that of y the edge l 5..

The block la may be removed from the base member. 2- by; loosening the:pair of screws 8 associateditherewith, following which the block may be rotated through 180 toposition the cutting edge; id. in operative. position relative to the. male member 22:, after: which; the screws 8* may be screwed down to-rigidly secure the block in such position. When it is desired to utilize the cutting edge i8, the block 29a is disconnected. from the.- male, member 22 by removing the screw 3| and. withit the block, thereby exposing the cutting. edge 2.70: which is complementary. to the cutting edge [8. Inlikev manner, the block 12; may be: reversed to position the cutting edge. l9 inoperative position inrwhich case the block 291) isremoved from the male. member, exposing the cutting edge. 21h,which is complementary to the cutting, edge is. edges. 1.5, L1,, l8, and. L9, stock may be cut on any one of four different radii, and by positioning the blocks. 1a and 1b, as illustrated in Figs. 1 and, 3, stock: may also becut. on the diagonal. or providedawith a right-angle notch therein.

Fig. 6 illustrates the corner portion of apiece otstock A after it has been cut bythe edges [8 and; 33 to produce a diagonal corner. edge a,

and. Fig. 7 illustrates acornerportion of alpiece.

Thus by use. of the cutting of material B after it has been cut by the edges [4 and 34 to form a notch b. In like manner, Fig. 8 illustrates a portion of a sheet C, the corher of which has been rounded by means of the cutting edges [5 and 210; and Fig. 9 illustrates the rounding of an end of a strip D by means of the cutting edges I! and 21d.

To facilitate guiding and gauging of material being cut, guide members 35 and 35' are provided. As illustrated in Fig. 5;, eacfn guide member 35 is generally triangular in shape and is provided along one edge with a downwardly extending flange 36, the bottom face of each member being. provided with a rib 31, extending transversely to the flange 36 and adapted to be positioned in oneof the. channels 38 in the guide bars H adjacent the blocks la and lb. Each of the members 35 is provided with an elongated slot 39 extending through the rib 3'! and adapted to receive a mounting screw 4| threaded into the bar H.

, Assuming stock is to be cut, asilustrated. inFig.

6; with the cutting edges l3 and 33"; the. guide members 35 would'bev mountedon the supporting bars l'l" adjacent the block 1a,, as illustrated, in Fig. 1,, and as the guide members. may be shifted transversely with respectto their supporting, bars i I, the amount of'material removed from the corner during the cutting operation may be readily varied by moving the guide members 35 relative to their bars. The ribs 31 and channels 38 insure proper alignment of the guide flanges 36, at all times maintaining the flanges on the respective guide members at a 90 relationship in any of their adjusted positions.

The guide members 35' are adapted foruse in guiding strip material into any ofthe co-opeia tcutting edges and, as illustrated in Fig. I', are set up to guide material, such as the strip D illustrated in Fig: 9, relative to. the cutting edges. l1 and 2111; Each ofthe guide members'3'5"is'provided with a flange 42 adapted to seat: upon the upper surface of therespective bars H, each flange being provided with an elongated slot 43 extending parallel to its respective bar adapted to receive a mounting screw 44 threaded into the bar H. As illustrated in Fig. 1, each bar H is provided with two threaded bores 45 adapted to receive screws i iwhereby the guidie members 35 may be mounted on eitherside' of the respective' bars in operative position with respect to any one of thedie blocks 1. Each of the guide members 35 is provided with an edge extendingdiagonally relative to the bar' H supporting the same, at an angle of substantially 45- with respect thereto. The diagonal edges 46' on the respective guide members ext-end in opposite directi'ons. relative to their mounting edges to form right andleft hand guidemembersso th'atwhen the members are mounted as illustrated'ih Fig.

1, the pair of edgesdsthereof will extend parallel to one another and parallel to a line passingthroughthe axis of the-punch= member and the center of radius of the curved edge- H" of the die block- 'M. It will be apparent" that by'sliding the guide members along their respective bars I], the distance between the edges H5 may be varied; as wellas the distance between each edge and theradial line. abov'e referred to, atthesame tnne: maintaining the parallel relation of the edge 45, whereby stripmaterial of'different' sizes may be readily and accuratelyguided'into'the dle.

l5 and ll would be normally employed either for trimming the ends of strip material, such as illusftrated in Fig. 9, or for rounding the corners'of a sheet of material, such as illustrated in Fig 8. In the event strip material is employed, the gu de members 35' may be employed in connection with either of the die blocks, and if corners are to be 'in connection with any one'of. the die blocks and regardless of the positions of the blocks la and 1b; inview of which all of the bars II are provided with threaded bores 45 for mounting the guide members 35 thereon. While the die blocks 1 have been illustrated with various shaped cutting edges, it is believed apparent that the shape of such edges, as well as the combination of edges employed, may be varied to suit particular requirements.

It will be noted from the above description that I have provided a novel die structure, for performing a plurality of diiferent cutting operations, together with novel means for guiding material into the same, which device is relatively "simple in construction, durable, and very eflicient in operation.

Having thus described my invention, it is obvious that various immaterial modifications may be made in the same without departing from the spirit of my invention; hence, I do not wish to be understood as limiting myself to the exact form, construction, arrangement, and combination of parts herein shown and described or uses I mentioned.

What I claim as new and desire to secure by Letters Patent is:

1. In a punching die, the combination of a female die member and a co-operable male punch member moveable relative to each other on a pre-determined axis, co-operating means on the die and punch members for maintaining the same in axial alignment during relative movement therebetween, a plurality of die blocks radially arranged about said axis, said punch member having a portion for each block complementary to and co-operable with a portion of the latter, one of said blocks being constructed to be selectively positioned relative to the base member whereby a second portion of such block may be positioned to co-operate with said punch member, a block adapted to be removably secured to the punch member and having a portion complementary to and co-operable with the second portion of said die block when the latter portion is in operable position, radially extending guide supporting bars carried by said die member, each bar being positioned between adjacent die blocks,

and a pair of guide members, each mounted on mounted on said 'female member, saidpu member having a portion complementary to and co-operable with a portion of said block, a'pair of radially extending guide, supporting bars mounted upon said spacer blocks afiixed to said die member and extending at right angles to one another, each bar being positionedyat one side of said block, and a pair of guide members each mounted on one of said bars and adjustable relative to the latter for guiding material relative to the co-operating portions of such die blpck and punch member. v b

3. In a punching die, the combination of a female die member including spacer blocks and a co-operable male punch member'moveable relative to each other on a pre-determinedaxis, cooperating means on the die and punch members for maintaining the same in axial alignment dur ing relative movement therebetween, a die block mounted on said female member, said punch member having aportion complementary to and co-operable with a portion of said block, a pair of radially extending guide supporting bars mounted upon said spacer blocks aflixed to said die member and extending at right angles to one another, each bar being positioned at one side of said block, and apair of guide members, each mounted on one of said bars, said guide'members having material engageable guide edges extending parallel to one another and at an angle of to their respective supporting'barsand adjustable relative to the latter in a directionparallel thereto for guidingmaterial relative to the co-operating portions of such die block and punch member.

4. In a punching die, the combination ofa female die member including spacer. blocks arranged at right angles to each other and a cooperable male punch member moveable relative to each other on a pre-determined axis,.c0-opcrating means on the die and punch members for maintaining the same in axial alignment during relative movement therebetween, a die block mounted on said female member, said punch member having a portion complementary to and co-operable with a portion of said block, a pair of radially extending guide supporting bars atfixed to said spacer blocks .mounted upon said die member and extending at right angles to one another, each bar being positioned at one side of tending parallel to their respective supporting bars and adjustable relative to the latter in a direction at right angles thereto for guiding material relative. to the co-operating portionof such die block and punch member.

5. In a punch die, the combination of a female die member and a co-operable male punch member moveable relative to each other on-a pre-determined axis, co-operating means on the die and punch members for'maintaining the same in axial alignment during relative movement therebetween, a plurality-of die blocks radially arranged about said axis, said punch member having a portion for each block complementary to and co-operable'with a portion of the latter, one of said blocks being constructed to be selectively positioned relative to the base member whereby a second portion of such block may be positioned to co-operate with said punch member, and a block adapted to be 'removably secured to the punch member and having a portion complementary to and co-operable with the second portion oi said; die block when. the latter portion is-in operableposition.

eant punching, die, the commit ee, a a femalediemember' and a co-operablemale punch member moyeable relative to, each other on a to be selectivel-y positioned relative to the base wherebya second portion of such block may be positionedto co-operate with said punch memberha.blockw adaptedtdbe removably secured to thepunchmember and having a portion complementary to and coaoperable with the. second 7 portion of said dieblock when the latter portion isinoperabieposition, apair of radially extendin u de. supportingbars carried by said die member and exi'le'ndingatv right angles to one 'anothen-each. bar being, positioned at one side ofgsaid; block andapair. of guidememberaieach mounted on one oi said bars, said. guide members having. material engageable guide edges extending parallel. to their respective supporting. bars and. adjustable, relative to the latter in a direction. at right. angles thereto for guiding material relative to the co-.operating portion. of such die blockand punch member. 7

7. 11; a. punching..die,. the combination of a female. die member. andaco-operable male punch member nioyeable relativeto each. other on a pre-determined axis, co-operating means on the. die and punch-members for maintaining the same in axial alignment during relative movement therebetween, a diebl'oekinountedon said female member, said punch member having a portion complementary to and coeoperable with a porti'on o'f; said block,v the latter being constructed tape selectively positioned relative to the base member whereby a; second portion of such block maybe positioned to co.-operate with. said punch member,..a. block adaptedto be removably secured to the punch member. and having a portion complementary to and co-operable. with the secondiportion of. said die block when the latter portion is in operable position, apair of radially extending uide supporting bars-carried by said die member and-.extendingat right anglesto one another,, each ,bar being positioned. at one side of said block, and a pain of guide. members, each mounted. on one ofsaid', bars, said guide members having, material engageable guide edgesv extending parallel to one another and at an' angle ofto their; r sp ctive DQorting. bars and adjustable relative to the'latter in a direction parallelthereto for guiding material'relative to the cooperating portions of such die block and punch member. a

8; In apunch die, the combination of a female diememberand a co-operable male punch member moveable relative to each other on a predetermined axis, co-operati'ng means on the die andpunchmembers for maintaining the same in axial alignment. during relative movement therebetween, a pluralityof die blocks radially arranged. about said axis, said punch member having. a portion for each block complementary to and" co-operable with a. portion of the latter,

' at, leastjone of said. blocks being constructed to beselectively positioned relative to the base member whereby a secondportion of. such block may be positioned to co-operate with said punch member, at least. oneblockv adapted to lie-removably secured .to the punch member, and having a portion complementary tov and co-operable; with the. second portion of said die block when. the latter portionis in operable position, radially extending guide supportingbars carried by said die member, each, bar being positioned betweenuadjacent die blocks, and a pair of guide members, each mountedon one of an adjacent pair of said bars. and. adjustable relative to the die block therebetween for guiding material relative to the ctr-operating. portions of such die block and punchmember. 1

9.; .In a punch die, the combination ota .female diemember anda co-operable malepunch member, moveable relative to each other on a predetermined .-axis,. saic'l female die member having a recess in its upper face, ,a plurality of. die-blocks positioned. in said recess andradially arranged about said axis,. a spacer member positioned .in said recess between each adjacent pair of die blocks, saidpunch. member having, a portion for each block complementary to and vco-operable with a, portion of the latter, a. guide projection on said punch member ,co-operable with-each adjacentipair of diev blocks and the spacer member therebetweenfor maintaining the female. die member and punch memberin axial alignment during relative movement therebetw-een, radially extending guide supporting bars carried. bysaid spacer members, each barlbeingpositioned. b tween adjacent die blocks and extending. radially with respect to saidaxis, and a pair of guide members, each mounted, on. one 'of an adjacent pair of. said bars and adjustable relative. to the die, block therebetweenior guiding, material relative to the cmoperati'ng portions of such die block and, punch member.

10, In a punch die, the combination of. a female die member and a co-operable male punch, member moveable relative to each other on a predetermined axis, said female diemember having a recess in its upper face, a pluralityof die blocks positioned in said recess and radially arranged about said' axis, a spacer member positioned in said recess between each adjacent pair of die block's, said punch member having a portion for each block complementary to and coo'p'erable with a portion of the latter, a guide projection on said punch member co-operable each adjacent pair of die blocks and the spacer member therebetween for maintaining the female die member andpunch member in axial alignment during relative movement .theref between, one of said: blocksbeing constructed'to be selectively positioned relative to the base member whereby a second portion of. such block may be positioned to co-operate with. said punch member, a block adapted to be removably secured to' th'e, unch member and having a portion complementary to and co.-.operable with the second portion of said die block when the latter portion is in operable position, radially extending guide supporting bars carried by said spacer members, eachbar being. positioned between adjacent die blocks andextencling radially with respect to said axis, and. a. pair of. guidemembers, each mounted on oneof an adjacent pair of said bars. and. adjustable relative to the die blocktherebetween for guidingmaterial relative to the co-operating portions of such die. block and .punch memben,

11. In a punchdie, the combination of afemale die member and a co-op'erable malepunch member movable relative to. each. other ona prede termined axis, a plurality of die blocks radially arranged about said axis, said punch member having a portion for each block complementary to and co-operable with a portion of the latter, at least one of said blocks being constructed to be selectively positioned relative to the base member whereby a second portion of such block may be positioned to co-operate with said punch member, and at least one block adapted to be removably secured to the punch member and having a portion complementary to and co-operable with a second portion of said die block when the latter portion is in operable position.

12. In a punch die, the combination of a female die member and a co-operable male punch member movable relative to each other on a predetermined axis, co-operating means on the die and punch members for maintaining the same in axial alignment during relative movement therebetween, a die block mounted on said female member, said punch member having a portion complementary to and co-operable with a portion of said die block, the latter being constructed to be selectively positioned relative to the base member whereby at least one other portion of such die block may be positioned to co-operate with said punch member, at least one block adapted to be removably secured to the punch member and having a portion complementary to and co-operable with at least one other portion of said die block when said other portion is in operable position.

13. In a punch die, the combination of a female die member and co-operable male punch member movable relative to each other on a predetermined axis, a die block mounted on said female member, said punch member having a portion complementary to and co-operating with a portion of said die block, the latter being constructed to be selectively positioned relative to the base member whereby at least one other portion of such die block may be positioned to co-operate with said punch member, at least one block adapted to be removably secured to the punch member and having a portion complementary to and co-operable with at least one other portion of said die block when said other portion is in operable position.

14. In a punching die, the combination of a female die member including spacer blocks and a co-operable male punch member movable relative to each other on a predetermined axis, a die block mounted on said female member, said punch member having a portion complementary to and co-operable with a portion of said block, a pair of radially extending guide supporting bars afiixed to said spacer blocks and extending at right angles to one another, each bar being positioned at one side of said block, and a pair of guide members, each mounted on one of said bars and adjustable relative to the latter for guiding material relative to the co-operating portions of such die block and punch member.

15. In a punch die, the combination of a female die member and a co-operating male punch member movable relative to each other on a predetermined axis, said female die member being adapted to receive at least one selectively positionable die block having differently shaped working edge portions, and said male punch member including projections at right angles to each other and adapted to receive at least one removable block between contiguous projections for forming said male punch member into a configuration complemental to the co-operable working edge portions of the female die member.

16. In a punch die, the combination of a female die member including spacer blocks mounted on the die member on axes at right angles to each other and a co-operable male punch member movable relative to each other on a predetermined axis, said female die member being adapted to receive a plurality of positionable die blocks between and contiguous to the spacer block, each having differently shaped working edge portions, and said male punch member including projections at right angles to each other and adapted to receive a plurality of removable blocks between contiguous projections for forming said male punch member into a configuration complemental to the co-operable working edge portions of the female die member.

ANTON MARTINCIC.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 128,159 Merriam June 18, 1872 473,859 Taylor Apr. 26, 1892 649,112 Smith May 8, 1900 1,018,699 De Smith Feb. 27, 1912 1,787,815 Ditchfield Jan. 6, 1931 

